package cn.tedu._04mybatis.mapper;

import cn.tedu._04mybatis.pojo.Comment;
import cn.tedu._04mybatis.pojo.CommentVO1;
import cn.tedu._04mybatis.pojo.CommentVO2;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface CommentMapper {
    @Insert("INSERT INTO comment(content,created,weibo_id,user_id) " +
            "VALUES(#{content},#{created},#{weiboId},#{userId})")
    int insertComment(Comment comment);

    @Update("UPDATE comment " +
            "SET content=#{content},created=#{created},weibo_id=#{weiboId},user_id=#{userId} " +
            "WHERE id=#{id}")
    int updateComment(Comment comment);

    @Delete("DELETE FROM comment WHERE id=#{id}")
    int deleteCommentById(Integer id);

    @Select("SELECT content,user_id userId,weibo_id weiboId " +
            "FROM comment " +
            "WHERE id=#{id}")
    CommentVO1 selectCommentById1(Integer id);

    @Select("SELECT content,user_id userId " +
            "FROM comment " +
            "WHERE weibo_id=#{id}")
    List<CommentVO2> selectCommentById2(Integer id);


}
